Print Email Facebook Twitter A new approach to determine the concentration distribution in slurry transport Title A new approach to determine the concentration distribution in slurry transport Author Miedema, S.A. (TU Delft Offshore and Dredging Engineering) Contributor Hayes, Donald F. (editor) Date 2017 Abstract Most concentration distribution models are based on the advection diffusion equation for two-dimensional (2D) channel flow. These models may or may not incorporate hindered settling based on the cross-sectional averaged spatial volumetric concentration. These models also use a diffusivity based on the turbulent momentum diffusivity, sometimes corrected for the particle diameter (Kaushal & Tomita (2000)). The result is a 2D concentration profile. To make this applicable for pipe flow, the integrated concentration profile must match the cross-sectional averaged spatial volumetric concentration, which requires a correction. Still the result is based on a constant hindered settling velocity, which is not correct considering the concentration over the vertical coordinate is not a constant. An iterative method has been developed to correct the concentration profile for the local hindered settling velocity. About 4 iterations are necessary to find the resulting concentration profile. Subject DredgingNewtonian settling slurry transportconcentration profile To reference this document use: http://resolver.tudelft.nl/uuid:4e5db076-8814-43ef-af3d-761d8aa74229 Publisher Western Dredging Association, Bonsall, CA, USA Source Proceedings Dredging Summit and Expo 2017 Event WEDA Dredging Summit & Expo 2017, 2017-06-26 → 2017-06-29, Vancouver, Canada Part of collection Institutional Repository Document type conference paper Rights © 2017 S.A. Miedema Files PDF 4b_1.pdf 1.43 MB Close viewer /islandora/object/uuid:4e5db076-8814-43ef-af3d-761d8aa74229/datastream/OBJ/view